/* ==========================================================
   魔戒.net - 深空 + 可交互 3D 戒指 (Deep Space Quantum Theme)
   mojieyun.homes 专用深空极客原生样式表
   ========================================================== */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&family=Unbounded:wght@400;600;700;800;900&family=Noto+Sans+SC:wght@300;400;500;700&display=swap');

:root {
  --bg-space: #04040c;
  --bg-card: rgba(14, 14, 28, 0.75);
  --bg-card-hover: rgba(22, 22, 44, 0.9);
  --color-blue: #7cc4ff;
  --color-purple: #b48cff;
  --color-pink: #ff9de0;
  --iridescent-gradient: linear-gradient(135deg, #7cc4ff 0%, #b48cff 50%, #ff9de0 100%);
  --iridescent-glow: rgba(180, 140, 255, 0.35);
  --border-space: 1px solid rgba(180, 140, 255, 0.2);
  --text-main: #f0f3fc;
  --text-muted: #9ba3c0;
  --text-dim: #656c8a;
  --font-heading: 'Unbounded', 'Noto Sans SC', sans-serif;
  --font-body: 'Outfit', 'Noto Sans SC', sans-serif;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  background-color: var(--bg-space);
}

body {
  background-color: var(--bg-space);
  color: var(--text-main);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.75;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* Background Canvas */
#space-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* Header & Nav */
.site-header {
  position: sticky;
  top: 0;
  width: 100%;
  background: rgba(4, 4, 12, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: var(--border-space);
  z-index: 100;
  padding: 18px 0;
}

.nav-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand-logo {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  text-decoration: none;
  background: var(--iridescent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: flex;
  align-items: center;
  gap: 10px;
  letter-spacing: -0.02em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.main-nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 400;
  transition: var(--transition);
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--color-blue);
  text-shadow: 0 0 12px var(--iridescent-glow);
}

.main-nav a.nav-news {
  color: var(--color-pink);
  border: 1px solid rgba(255, 157, 224, 0.4);
  padding: 5px 14px;
  border-radius: 20px;
  background: rgba(255, 157, 224, 0.08);
}

.main-nav a.nav-news:hover {
  background: rgba(255, 157, 224, 0.2);
  box-shadow: 0 0 16px rgba(255, 157, 224, 0.4);
}

.nav-cta-btn {
  background: var(--iridescent-gradient);
  color: #04040c !important;
  font-weight: 700 !important;
  padding: 8px 22px;
  border-radius: 20px;
  box-shadow: 0 2px 14px rgba(180, 140, 255, 0.35);
}

.nav-cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 22px rgba(255, 157, 224, 0.5);
}

/* Hero Section */
.hero-section {
  padding: 60px 0 80px;
  text-align: center;
  position: relative;
}

/* 3D Ring Interactive Core */
.ring-3d-scene {
  perspective: 900px;
  width: 320px;
  height: 320px;
  margin: 0 auto 30px;
  position: relative;
  cursor: grab;
  user-select: none;
  -webkit-user-select: none;
}

.ring-3d-scene:active {
  cursor: grabbing;
}

.ring-3d-world {
  width: 100%;
  height: 100%;
  position: absolute;
  transform-style: preserve-3d;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ring-bead {
  position: absolute;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: radial-gradient(circle, #fff 0%, #ff9de0 40%, #b48cff 75%, #7cc4ff 100%);
  box-shadow: 0 0 12px #ff9de0, 0 0 24px #7cc4ff;
  pointer-events: none;
}

.ring-core-glow {
  position: absolute;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(180, 140, 255, 0.25) 0%, rgba(124, 196, 255, 0.1) 50%, transparent 70%);
  filter: blur(15px);
  pointer-events: none;
}

.ring-hint {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  color: var(--color-blue);
  margin-bottom: 24px;
  display: inline-block;
  animation: pulse 2.5s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.7; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.04); }
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4.6vw, 3.4rem);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 20px;
  letter-spacing: -0.03em;
}

.iridescent-text {
  background: var(--iridescent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  color: var(--text-muted);
  max-width: 800px;
  margin: 0 auto 18px;
}

.hero-intro {
  font-size: 0.96rem;
  color: #8890ad;
  max-width: 840px;
  margin: 0 auto 36px;
  line-height: 1.85;
}

.hero-actions {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.btn-quantum {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 36px;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: 30px;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
}

.btn-quantum-primary {
  background: var(--iridescent-gradient);
  color: #04040c;
  border: none;
  box-shadow: 0 4px 25px rgba(180, 140, 255, 0.4);
}

.btn-quantum-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 35px rgba(255, 157, 224, 0.6);
}

/* Dofollow Hero Check Button for PBN SEO */
.btn-quantum-check {
  background: rgba(14, 14, 28, 0.85);
  color: var(--color-blue);
  border: 1px solid rgba(124, 196, 255, 0.4);
  box-shadow: 0 2px 14px rgba(0, 0, 0, 0.4);
}

.btn-quantum-check:hover {
  background: rgba(124, 196, 255, 0.15);
  border-color: var(--color-pink);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 0 22px rgba(180, 140, 255, 0.4);
}

/* Section Header */
.section-header {
  text-align: center;
  margin-bottom: 50px;
}

.section-label {
  font-family: var(--font-heading);
  font-size: 0.74rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-purple);
  margin-bottom: 12px;
  display: block;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.7rem, 3.2vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}

.section-desc {
  color: var(--text-muted);
  font-size: 0.98rem;
  max-width: 660px;
  margin: 0 auto;
}

/* 3 Feature Cards (AES-256 锻炉, 零日志轨道, 断联光束) with 3D tilt hover */
.features-section {
  padding: 80px 0;
}

.feature-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  perspective: 1000px;
}

.quantum-card {
  background: var(--bg-card);
  border: var(--border-space);
  border-radius: var(--radius-md);
  padding: 38px 30px;
  position: relative;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  backdrop-filter: blur(12px);
  transform-style: preserve-3d;
}

.quantum-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--color-purple);
  transform: translateY(-6px) rotateX(4deg) rotateY(-2deg);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.6), 0 0 25px rgba(180, 140, 255, 0.25);
}

.card-icon-halo {
  width: 54px;
  height: 54px;
  border-radius: 14px;
  background: rgba(180, 140, 255, 0.12);
  border: 1px solid rgba(180, 140, 255, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 22px;
}

.quantum-card h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--color-blue);
}

.quantum-card p {
  color: var(--text-muted);
  font-size: 0.93rem;
  line-height: 1.8;
}

/* Media & AI Cards */
.media-ai-section {
  padding: 80px 0;
}

.media-ai-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.media-card {
  background: var(--bg-card);
  border: var(--border-space);
  border-radius: var(--radius-md);
  padding: 36px;
  transition: var(--transition);
}

.media-card:hover {
  border-color: var(--color-pink);
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.media-badge {
  display: inline-block;
  font-size: 0.74rem;
  font-family: var(--font-heading);
  letter-spacing: 0.15em;
  padding: 4px 12px;
  border-radius: 20px;
  background: rgba(124, 196, 255, 0.1);
  border: 1px solid rgba(124, 196, 255, 0.3);
  color: var(--color-blue);
  margin-bottom: 16px;
}

.media-card h3 {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  margin-bottom: 12px;
}

.media-card p {
  color: var(--text-muted);
  font-size: 0.93rem;
  margin-bottom: 22px;
  line-height: 1.8;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag-pill {
  background: rgba(180, 140, 255, 0.08);
  border: 1px solid rgba(180, 140, 255, 0.25);
  color: var(--color-purple);
  font-size: 0.82rem;
  padding: 4px 14px;
  border-radius: 20px;
}

/* Pricing Grid (Hobbit $4.99 / Ranger $7.99 / Wizard $11.99) */
.pricing-section {
  padding: 90px 0;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-card);
  border: var(--border-space);
  border-radius: var(--radius-md);
  padding: 40px 30px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: var(--transition);
}

.pricing-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.6);
}

/* Ranger Tier Highlighted with Iridescent Gradient Border */
.pricing-card.ranger-highlight {
  border: 2px solid transparent;
  background-image: linear-gradient(rgba(14, 14, 28, 0.95), rgba(14, 14, 28, 0.95)), var(--iridescent-gradient);
  background-origin: border-box;
  background-clip: padding-box, border-box;
  box-shadow: 0 0 35px rgba(180, 140, 255, 0.3);
  transform: scale(1.03);
}

.pricing-card.ranger-highlight:hover {
  transform: scale(1.03) translateY(-5px);
  box-shadow: 0 0 45px rgba(255, 157, 224, 0.45);
}

.plan-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--iridescent-gradient);
  color: #04040c;
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  padding: 4px 18px;
  border-radius: 20px;
  text-transform: uppercase;
  white-space: nowrap;
}

.plan-name {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 12px;
  text-align: center;
}

.plan-price {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--color-blue);
  text-align: center;
  margin-bottom: 6px;
}

.plan-price span.period {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text-dim);
  font-weight: 300;
}

.plan-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  text-align: center;
  margin-bottom: 28px;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(180, 140, 255, 0.15);
}

.feature-list {
  list-style: none;
  margin-bottom: 34px;
  flex-grow: 1;
}

.feature-list li {
  font-size: 0.92rem;
  color: var(--text-main);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.feature-list li span.dot-icon {
  color: var(--color-purple);
  font-size: 0.8rem;
}

.plan-cta {
  margin-top: auto;
}

.plan-cta .btn-quantum {
  width: 100%;
}

/* User Reviews */
.reviews-section {
  padding: 80px 0;
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.review-card {
  background: var(--bg-card);
  border: var(--border-space);
  border-radius: var(--radius-md);
  padding: 30px;
  display: flex;
  flex-direction: column;
}

.review-stars {
  color: var(--color-pink);
  font-size: 0.95rem;
  margin-bottom: 14px;
  letter-spacing: 2px;
}

.review-content {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.75;
  margin-bottom: 20px;
  flex-grow: 1;
}

.reviewer-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  border-top: 1px solid rgba(180, 140, 255, 0.15);
  padding-top: 14px;
}

.reviewer-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--color-purple);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  color: var(--color-blue);
  background: rgba(180, 140, 255, 0.1);
}

.reviewer-info h4 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-main);
}

.reviewer-info p {
  font-size: 0.78rem;
  color: var(--text-dim);
}

/* FAQ Section */
.faq-section {
  padding: 80px 0 100px;
}

.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.faq-item {
  background: var(--bg-card);
  border: var(--border-space);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: var(--color-blue);
}

.faq-question {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-blue);
  margin-bottom: 12px;
}

.faq-answer {
  color: var(--text-muted);
  font-size: 0.93rem;
  line-height: 1.8;
}

/* Footer Section - STRICTLY ONLY 4 Titles */
.site-footer {
  border-top: var(--border-space);
  background: #020208;
  padding: 50px 0 40px;
  position: relative;
  z-index: 10;
}

.footer-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 40px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.footer-nav a {
  font-family: var(--font-heading);
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.92rem;
  letter-spacing: 0.05em;
  transition: var(--transition);
  padding: 6px 12px;
}

.footer-nav a:hover {
  color: var(--color-pink);
  text-shadow: 0 0 12px var(--iridescent-glow);
}

.footer-bottom {
  text-align: center;
  color: var(--text-dim);
  font-size: 0.82rem;
  border-top: 1px solid rgba(180, 140, 255, 0.1);
  padding-top: 24px;
}

/* Check Diagnostic Styles */
.matrix-table-wrap {
  margin: 40px 0;
  overflow-x: auto;
  background: var(--bg-card);
  border: var(--border-space);
  border-radius: var(--radius-md);
  padding: 24px;
}

.matrix-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.matrix-table th {
  font-family: var(--font-heading);
  color: var(--color-blue);
  font-size: 0.95rem;
  padding: 16px 20px;
  border-bottom: 2px solid rgba(124, 196, 255, 0.3);
}

.matrix-table td {
  padding: 16px 20px;
  border-bottom: 1px solid rgba(180, 140, 255, 0.1);
  font-size: 0.92rem;
  color: var(--text-muted);
}

.matrix-table tr:hover td {
  background: rgba(180, 140, 255, 0.05);
  color: var(--text-main);
}

.level-tag {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 12px;
  font-size: 0.78rem;
  font-weight: 600;
}

.level-extreme {
  background: rgba(255, 77, 106, 0.2);
  color: #ff4d6a;
  border: 1px solid rgba(255, 77, 106, 0.4);
}

.level-strict {
  background: rgba(255, 157, 224, 0.2);
  color: var(--color-pink);
  border: 1px solid rgba(255, 157, 224, 0.4);
}

.level-varies {
  background: rgba(124, 196, 255, 0.2);
  color: var(--color-blue);
  border: 1px solid rgba(124, 196, 255, 0.4);
}

.level-unknown {
  background: rgba(140, 150, 180, 0.2);
  color: #adb5bd;
  border: 1px solid rgba(140, 150, 180, 0.4);
}

.analysis-card {
  background: var(--bg-card);
  border: var(--border-space);
  border-radius: var(--radius-md);
  padding: 32px;
  margin-bottom: 28px;
}

.analysis-card h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--color-blue);
  margin-bottom: 14px;
}

.analysis-card p, .analysis-card li {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.85;
}

.analysis-card ul {
  padding-left: 20px;
  margin-top: 10px;
}

/* Article Styles */
.article-container {
  max-width: 860px;
  margin: 50px auto 80px;
  padding: 0 24px;
}

.article-header {
  margin-bottom: 40px;
  text-align: center;
}

.article-header h1 {
  font-family: var(--font-heading);
  font-size: clamp(1.7rem, 3.5vw, 2.5rem);
  font-weight: 800;
  line-height: 1.35;
  margin-bottom: 20px;
}

.article-meta {
  color: var(--text-dim);
  font-size: 0.85rem;
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 25px;
}

.article-body {
  font-size: 1rem;
  line-height: 1.95;
  color: #d8deee;
}

.article-body h2 {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  color: var(--color-blue);
  margin: 44px 0 18px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(124, 196, 255, 0.2);
}

.article-body h3 {
  font-family: var(--font-heading);
  font-size: 1.18rem;
  color: var(--color-pink);
  margin: 28px 0 14px;
}

.article-body p {
  margin-bottom: 22px;
}

.article-body ul, .article-body ol {
  margin: 18px 0 24px 28px;
}

.article-body li {
  margin-bottom: 10px;
}

.article-body blockquote {
  border-left: 3px solid var(--color-purple);
  background: rgba(180, 140, 255, 0.06);
  padding: 16px 22px;
  margin: 28px 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--color-blue);
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 28px 0;
  font-size: 0.92rem;
}

.article-body th {
  background: rgba(180, 140, 255, 0.15);
  color: var(--color-blue);
  padding: 12px 16px;
  border: 1px solid rgba(180, 140, 255, 0.3);
  text-align: left;
}

.article-body td {
  padding: 12px 16px;
  border: 1px solid rgba(180, 140, 255, 0.15);
  color: var(--text-muted);
}

.article-body a {
  color: var(--color-blue);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.article-body a:hover {
  color: var(--color-pink);
}

/* Hub Article Grid */
.news-hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px;
  margin: 40px 0 80px;
}

.news-card {
  background: var(--bg-card);
  border: var(--border-space);
  border-radius: var(--radius-md);
  padding: 28px;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.news-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-purple);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

.news-card h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  margin-bottom: 12px;
}

.news-card h3 a {
  color: var(--text-main);
  text-decoration: none;
  transition: var(--transition);
}

.news-card h3 a:hover {
  color: var(--color-blue);
}

.news-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 20px;
  flex-grow: 1;
}

.news-readmore {
  color: var(--color-pink);
  font-family: var(--font-heading);
  font-size: 0.82rem;
  letter-spacing: 0.05em;
  text-decoration: none;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.news-readmore:hover {
  color: #fff;
}

/* Responsive Media Queries */
@media (max-width: 992px) {
  .feature-cards-grid,
  .media-ai-grid,
  .pricing-grid,
  .reviews-grid {
    grid-template-columns: 1fr;
  }
  
  .pricing-card.ranger-highlight {
    transform: none;
  }
  
  .pricing-card.ranger-highlight:hover {
    transform: translateY(-4px);
  }
  
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  
  .btn-quantum {
    width: 100%;
    max-width: 360px;
  }
}

@media (max-width: 768px) {
  .nav-wrapper {
    flex-direction: column;
    gap: 16px;
  }
  
  .main-nav {
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
  }
  
  .hero-section {
    padding: 40px 0;
  }
  
  .ring-3d-scene {
    width: 260px;
    height: 260px;
  }
  
  .footer-nav {
    flex-direction: column;
    gap: 16px;
  }
}